“And Santiago Rosinyol sat himself lazily down at the top of Las Ramblas. A small sign propped awkwardly against his left foot read ” three ideas of mine for one of yours”. Unfortunately that day there were no takers, nor the next one, nor the one after that. The people thought there was some kind of catch. Finally, and exhausted, Rosinyol folded his chair, ripped up the sign, and went wearily on his way. “